Our sons - our oldest boys - used to hop on the train and ride. The train would go like this up the tracks, you know, sort of - they couldn't go very fast - the tracks weren't good enough. So the boys would jump on the train and ride it up for a quarter of a mile and then they'd walk back down. And you can almost walk with it, because it didn't go much faster. Probably not quite ten miles an hour, even.